21388470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17389}}^1$

素因数の和:17440

約数の個数: 32

約数和(自身を含む): 52587360

約数和(自身を除く): 31198890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 17389, 34778, 52167, 86945, 104334, 173890, 260835, 521670, 712949, 1425898, 2138847, 3564745, 4277694, 7129490, 10694235, 21388470]

約数ペア:

[(1, 21388470), (2, 10694235), (3, 7129490), (5, 4277694), (6, 3564745), (10, 2138847), (15, 1425898), (30, 712949), (41, 521670), (82, 260835), (123, 173890), (205, 104334), (246, 86945), (410, 52167), (615, 34778), (1230, 17389)]